Linux CPU si soft interrupt comparison occupancy rate is relatively large (network solution)

IRQ Default Linux is automatically started, but often it is not very good for its own control (CPU SI is often a CPU occupied large)

Usually, we will turn off the auto-start irqblance and then manually specify the IRQ for optimization:

1. Look at the SI utilization of the CPU:

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2. Look at the device ID number:

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3. Configure the specified CPU: (1 for 1th, 2 for 2nd, 4 for 4th, 8 for 4th, 16 for 2, and 16 for the value shown)

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Example: I am the 8 core of the machine .... My operation is ....

/etc/init.d/irqbalance stop
Echo 1 >/proc/irq/59/smp_affinity
Echo 2 >/proc/irq/60/smp_affinity
Echo 4 >/proc/irq/61/smp_affinity
echo 8 >/proc/irq/62/smp_affinity
echo >/proc/irq/63/smp_affinity
echo >/proc/irq/64/smp_affinity
echo >/proc/irq/65/smp_affinity
echo >/proc/irq/66/smp_affinity

This article is from the "samly" blog, make sure to keep this source http://323248.blog.51cto.com/313248/1832292

Linux CPU si soft interrupt comparison occupancy rate is relatively large (network solution)